Sakai makes use of Maven's Project Object Model to provide an XML representation of basic project information covering dependency management, build targets, external repositories, issue tracking, mailing lists, reporting plugins, developer bios, etc. A top-level master pom.xml file located in the /master project acts as a parent for other pom.xml files included in other Sakai project modules. If you are building Sakai for the first time you should build the master POM first before attempting to build and deploy Sakai as whole. Issue the Maven clean and install goals from the /master project folder to build and install the master POM:
cd master mvn clean install cd ..